In what season and when is dusty weather prone to dusty weather?

1. Sandstorm weather mainly occurs in late spring and early summer. This is because there is little precipitation in arid areas in winter and spring, the surface is unusually dry and loose, and the wind erosion resistance is very weak. When there is a strong wind blowing, a lot of dust will be caught in the air, forming sandstorm weather. In addition, after a large-scale sandstorm occurred in late winter and spring, the dust raised by strong winds caused a lot of dust in the air, which obscured the local sunshine and even made the visibility zero, so the super sandstorm was also called a black storm.

2. Sandstorms will cause great losses to people's lives, property and agriculture. Sandstorms mainly originate in desertification areas, with soft soil, dry ground and no vegetation on the ground. Once the air is unstable in a large range and the ground wind speed is high, it is easy to blow up the surface dust and enter the air to form dusty weather.

3. From a global perspective, sandstorms mostly occur in inland desert areas, with the Sahara desert in Africa as the main source, and the midwest of North America and Australia as one of the sources. Due to its unique geographical environment, northwest China is also a region where sandstorms frequently occur. The main sources are Gurbantunggut Desert, Taklimakan Desert, Badain Jaran Desert, Tengger Desert, Wulanbuhe Desert and Mu Us Desert.